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profiling: remove stale percpu flip buffer variables

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For some reason I didn't see this issue on my arm64 or x86-64 builds,
but Stephen Rothwell reports that commit 2accfdb7ef ("profiling:
attempt to remove per-cpu profile flip buffer") left these static
variables around, and the powerpc build is unhappy about them:

  kernel/profile.c:52:28: warning: 'cpu_profile_flip' defined but not used [-Wunused-variable]
     52 | static DEFINE_PER_CPU(int, cpu_profile_flip);
        |                            ^~~~~~~~~~~~~~~~
  ..

So remove these stale left-over remnants too.

Fixes: 2accfdb7ef ("profiling: attempt to remove per-cpu profile flip buffer")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Linus Torvalds 2024-07-29 16:34:17 -07:00
parent 6b5faec9f5
commit 94ede2a3e9
1 changed files with 0 additions and 6 deletions
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6
kernel/profile.c
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@ -47,12 +47,6 @@ static unsigned short int prof_shift;
int prof_on __read_mostly;
EXPORT_SYMBOL_GPL(prof_on);
#if defined(CONFIG_SMP) && defined(CONFIG_PROC_FS)
static DEFINE_PER_CPU(struct profile_hit *[2], cpu_profile_hits);
static DEFINE_PER_CPU(int, cpu_profile_flip);
static DEFINE_MUTEX(profile_flip_mutex);
#endif /* CONFIG_SMP */
int profile_setup(char *str)
{
static const char schedstr[] = "schedule";